Noun mescal button has 1 sense
  1. mescal button, sacred mushroom, magic mushroom - the button-shaped top of the mescal cactus; a source of psilocybin
    --1 is a kind of plant organ
    --1 is a part of mescal, mezcal, peyote, Lophophora williamsii
    --1 has substances: mescaline, peyote
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